Four Ukrainians were reported killed and 21 wounded in various parts of Ukraine as Russia kept up its shelling assault.
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Ukrainian government officials claimed Friday that over 14,000 Russian soldiers have been killed since the start of the war on Feb. 24. The figures were not independently verified.
Several missiles hit an aircraft repair plant in the western Ukrainian city of Lviv on Friday morning, destroying its building, city mayor Andriy Sadovy said.
Video: Avi Cohen
The plant had been stopped and there were no casualties from the strike, he said.
Separately, Ukraine's military said the plant was struck by cruise missiles launched from the direction of the Black Sea.
The type of the missile was likely Kh-555, the military said, which are launched from heavy strategic bombers. Similar missiles struck the Yavoriv military base in western Ukraine on Sunday.

Elsewhere, one person was killed and 4 wounded after parts of a Russian missile fell on a residential building in the northern part of the Ukrainian capital Kyiv on Friday morning, emergencies services said.
The services said in a statement that 12 people were rescued and 98 were evacuated from the 5-story building.
As Russian forces press their assault on Ukraine, world leaders are again calling for an investigation of the Kremlin's repeat attacks on civilian targets, including airstrikes on schools, hospitals and residential areas that led one official to lament that his city had never seen such "nightmarish, colossal losses."
US Secretary of State Antony Blinken said Thursday that American officials were evaluating potential war crimes and that if the intentional targeting of civilians by Russia is confirmed, there will be "massive consequences."
In city after city, hospitals, schools and buildings where people sought safety from the bombardment have been attacked. Rescue workers searched for survivors in the ruins of a theater that served as a shelter when it was blown apart by a Russian airstrike in the besieged city of Mariupol. And in Merefa, near the northeast city of Kharkiv, at least 21 people were killed when Russian artillery destroyed a school and a community center, a local official said.
In the northern city of Chernihiv, dozens of bodies were brought to the morgue in just one day.
The United Nations political chief, Undersecretary-General Rosemary DiCarlo, also called for an investigation into civilian casualties, reminding the UN Security Council on Thursday that international humanitarian law bans direct attacks on civilians.
In Mariupol, hundreds of civilians were reportedly taking shelter in a grand, columned theater in the city's center when it was hit Wednesday by Russian forces. More than a day after the airstrike, there were no reports of deaths. With communications disrupted across the city and movement difficult because of shelling and other fighting, there were conflicting reports on whether anyone had emerged from the rubble.
Russia denied striking the theater. But its forces have blasted cities and killed many civilians in its assault on Ukraine, now entering its fourth week.
Northeastern and northwestern suburbs of Kyiv have suffered heavy damage but the capital itself has held firm, under a curfew and subjected to deadly nightly rocket attacks.
A building in Kyiv's Darnytsky district was extensively damaged by what the authorities said was debris from a missile shot down early in the morning.

Mariupol has suffered the worst humanitarian catastrophe of the war, with hundreds of thousands of civilians trapped in basements with no food, water or power as Russian forces pound it with artillery fire and air strikes.
Satellite imagery on Monday from Maxar Technologies showed huge white letters on the pavement in front of and behind the theater spelling out "CHILDREN" in Russian to alert warplanes to those inside.
"We hope and we think that some people who stayed in the shelter under the theater could survive," Petro Andrushchenko, an official with the mayor's office, told The Associated Press. He said the building had a relatively modern basement bomb shelter designed to withstand airstrikes. Other officials said earlier that some people had gotten out.
Russian foreign ministry spokeswoman Maria Zakharova said the allegation that Russia had bombed the theater was a "lie," and repeated Kremlin denials that Russian forces have targeted civilians.
"Russia's armed forces don't bomb towns and cities," she told a briefing.
In Chernihiv, at least 53 people were brought to morgues over 24 hours, killed amid heavy Russian air attacks and ground fire, the local governor, Viacheslav Chaus, told Ukrainian TV on Thursday.

"The city has never known such nightmarish, colossal losses and destruction," Chaus said.
The World Health Organization said it has verified 43 attacks on hospitals and health facilities, with 12 people killed and 34 injured.
Ukrainian President Volodymyr Zelenskyy called for more help for his country in a video address to German lawmakers, saying thousands of people have been killed, including 108 children. He also referred to the dire situation in Mariupol, saying: "Everything is a target for them."
The address began with a delay because of a technical problem caused by an attack close to where Zelenskyy was speaking, Bundestag deputy speaker Katrin Goering-Eckardt said.
Zelenskyy's office said Russian airstrikes hit the Kalynivka and Brovary suburbs of the capital, Kyiv. Emergency authorities in Kyiv said a fire broke out in a 16-story apartment building hit by remnants of a downed Russian rocket, and one person was killed.
In remarks early Friday, Zelenskyy said he was thankful to US President Joe Biden for additional military aid, but he would not get into specifics about the new package, saying he did not want Russia to know what to expect. He said when the invasion began on Feb. 24, Russia expected to find Ukraine much as it did in 2014, when Russia seized Crimea without a fight and backed separatists as they took control of the eastern Donbas region.
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Instead, he said, Ukraine had much stronger defenses than expected, and Russia "didn't know what we had for defense or how we prepared to meet the blow."
In a joint statement, the foreign ministers of the Group of Seven leading economies accused Putin of conducting an "unprovoked and shameful war," and called on Russia to comply with the International Court of Justice's order to stop its attack and withdraw its forces.
Both Ukraine and Russia this week reported some progress in negotiations. Kremlin spokesman Dmitry Peskov said Thursday that some negotiators were breaking into working groups.
Zelenskyy said he would not reveal Ukraine's negotiating tactics.
"Working more in silence than on television, radio or on Facebook," Zelenskyy said. "I consider it the right way."
Russia has demanded that NATO pledge never to admit Ukraine to the alliance or station forces there.
Meanwhile, in Russia, the Kremlin said on Thursday that many people in Russia were showing themselves to be "traitors" and pointed to those who were resigning from their jobs and leaving the country.
Kremlin spokesperson Dmitry Peskov made the comments a day after President Vladimir Putin delivered a stark warning to Russian "traitors" who he said the West wanted to use as a "fifth column" to destroy the country.
"In such difficult times...many people show their true colors. Very many people are showing themselves, as we say in Russian, to be traitors," Peskov told reporters on a conference call.
He was asked about Putin's remark that Russia would undergo a natural and necessary "self-cleansing" as people were able to "distinguish the true patriots from the scum and the traitors."
Peskov said: "They vanish from our lives themselves. Some people are leaving their posts, some are leaving their active work life, some leave the country and move to other countries. That is how this cleansing happens."